Hoisting and conveying apparatus.



HOISTING AND CONVEYING APPARATUS.

APPLlCATiON HLED 05022. 1909.

1,235,834.. Patented Aug. 7, 191?.

3 SHEETS-SHEET 1.

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WITNESSES 7 im" M u M- m l/VI/EIVTUH C. A. MORRIS.

HOISTING AND CONVEYING APPARATUS.

APPLICATION HLED DEC. 22. 1909. 1335,834. v Patented Aug. 7,1917.

' 3 SHEETSSHEET 2.

WITNESSES: Q

944/5 @Mzz 0. A. MORRIS HOISTING AND CONVEYING APPARATUS.

APPLICATION FILED DEC. 22. I909.

Patented Au 7, 1917.

3 SHEETS-SHEEI' 3.

WITNESS:

CharZe s/1. M0rrs CHARLES A. MORRIS, OF MONTCLAIR, NEW JERSEY, ASSIGNOR TO THE HAYWARD COMPANY, A CORPORATION OF NEW YORK.

HOISTING AND CONVEYING APPARATUS.

Specification of Letters Patent.

Patented. Aug. '7, 1917.

To all whom it may concern:

Be it known that 1, CHARLES A. MORRIS, a citizen of the United States, residing in Montclair, county of Essex, and State of New Jersey, have invented a certain new and useful Hoisting and Conveying Apparatus, of which the following is a specification.

This invention relates to improvements in hoisting and conveying apparatus, and embodies, more particularly, certain features of construction, the functions of which are, mainly, to preclude the power cable employed from winding or wrapping upon itself.

Experience shows that in the hoisting and conveying apparatus now in use serious disadvantages result from the winding of the cable upon itself, thereby greatly reducing the durability of the cable due to the friction and resulting wear between the strands, and, incidentally, various other disadvantages result.

The present invention overcomes the aforesaid disadvantages in a simple and efficient manner, and the tests to which it has been subjected demonstrate that it possesses ronounced utility.

The structural features of the invention comprise, aside from certain details, a power driven drum, a cable adapted to be wound thereon through which motion is imparted to said drum, means for guiding the cable so as to space the runs of the cable on the drum, and a second drum adapted to be coupled with, and driven by, the power drum.

In the accompanying drawings 1 have illustrated different practical embodiments of the invention, but the constructions shown therein are to be understood as illustrative, only, and not as defining the limits of the invention.

Figure 1 is a plan view of an apparatus constructed in accordance with the invention.

Fig. 2 is a side elevation thereof.

Fig. 3 is a view in side elevation illustrating another embodiment of the invention.

is an elevation of the structure Fig. 4 shown in Fig. 3 looking at the left of said figure. Fig.

ing another embodiment of the invention,

5 is a view similar to Fig. 4: illustrata plurality of power drums adapted to be driven by a single transmission cable.

Fig. 7 is an elevation of the mechanism illustrated in Fig. 5 and showing in additlon thereto means whereby either idle drum may be moved into and out of engagement with the power drum.

Fig. 8 is a detail sectional view of the means for moving an idle drum into and out of engagement with the power drum.

The invention illustrated in Figs. 1 and 2 embodies a power drum, A, and a plurality of drums, B, C, adapted to be coupled with said power drum, A, so as to be propelled thereby, or either drum, B or C, may be disconnected from said drum, A, so as to remain idle with respect thereto. The drums are mounted on a shaft, D, common to them all, and this shaft is journaled in bearings, e, on side frame, E, attached to a base, 6, the whole forming a suitable supporting frame for the shaft and the drums.

While I have shown two drums, B, C, adapted to cooperate with power drum, A, it is obvious that one of the drums, B or C, may be omitted.

Power, drum, A, is provided with a plurality of coaxial grooves, a, and at one or both ends said power drum is provided with friction clutch members, a, with which are adapted to engage oomplemental friction clutch members (not shown) on drums, B, C.

Power drum, A, is mounted loosely on shaft, D, or when the shaft rotates, drum, A, is secured rigidly to shaft, D, for the purpose of imparting rotary motion to said shaft, whereas drums, B, C, are mounted loosely on the shaft and are capable of sliding movement thereon so as to be shiftable toward and from said power drum, A, for the purpose of bringing the clutch member of the shiftable drum into engagement with the clutch member, a, of the power drum, whereby either drum, B, or C, may be coupled with said power drum for the purpose of being operated thereby. Any suitable means may be employed for sliding drum, B or C, on shaft, D, but as means for adjusting drums, B and C, are well known to those skilled in the art, and as such means constitute no part of this invention, it has been deemed unnecessary to illustrate or further describe said drum adjusting means, except to state that a screw 34 and a lever 35 may be employed as suitable means for adjusting the drums B or C, or both of them, reference being hereby made for a more complete illustration to the screw adjustment disclosed in the patent to Hayward, No. 811,144, Jan. 30, 1906, for hoisting and conveying apparatus.

F designates a power operated cable which is wound two or more times on power drum, A. As disclosed in the patent just referred to, one end of the power cable may extend back to, and be wound on, a drum adapted to be driven directly by an engine, whereas the other part of the cable is adapted to be connected with a suitable load carrying de vice, such as an excavating bucket, suspended at the outer end of a boom.

An important feature of this invention consists of means for precluding the runs of cable, F, from overlapping each other upon power drum, A. In the embodiment of this part of the invention shown in Figs. 1 and 2, there is employed an idler drum, G, which is in cooperative relation to drum, A, and cable F. The idler drum is provided with a plurality of grooves, g, and it is mounted on shaft or axle, G, supported in a stand, 9, fixed tobase, c, said shaft, G, being at an angle to shaft, D, for the purpose of supporting the idler drum in a position inclined to the power drum, whereby the grooved idler drum is adapted to direct the runs or wraps of the cable into the coaxial grooves, a, of said power drum so as to preclude said wrapped or coiled part of the cable from coming into frictional contact when the cable is wound on, or unwound from, said drum, A.

In rigging cable, F, the end thereof leading from the engine operated drum is passed part way around one groove, a, thence downwardly to idler drum, G, and fitted in one of the grooves, 9, thereof, after which'cable, F, is passed into another groove, a, of drum, A, thence downwardly into a groove, g, of idler drum, G, and thence in'another groove, a, of drum, A, the cable being thus alternately wrapped around drums, A, G, respectively. The other end of the cable leads away from drum, A, to the direction sheaves in the apparatus with which the described mechanism is employed. V

As before indicated, the invention may be used in connection with the power operated drum of the apparatus forming a part of Patent No. 811,144, but, obviously, it is not intended to limit the invention to a hoisting and conveying mechanism, for the reason that said invention may be used in any and all places where a drum is adapted to be operated by a cable and isassociated with one or more drums for the purpose of imparting motion and power thereto.

The drums, B, C, may be of any suitable or preferred construction for the reception of cables, B, C, respectively, and each of the driven drums is provided with a brake surface, 7L, adapted to receive a brake, H. Said brake may be of any suitable or preferred construction, such as a band brake, and when the driven drum is disconnected from the power drum, the brake may be compressed so as to engage frictionally' with brake surface, it, thereby retarding the motion of the drum, or arresting said drum according as it is desired to control the cable which is coiled on said driven drum.

From the foregoing description it is apparent that drum, A, will be rotated by the travel of cable, F, and this drum is adapted for imparting movement to one or both driven drums, B, C. When drums, B, C, are coupled with drum, A, the brake should be released, and the drum, A, imparts motion to drums, B, C, for the purpose of coiling cables, B, C, on said drums, B, C, or for the purpose of uncoiling said cables according to the direction in which the drums are rotated by cable, F.

The structure shown in Figs. 3 and 4 embodies the elements of power drum, A, driven drum, B a shaft, D, and a power operated cable, F, all substantially as heretofore described in connection with the construction of Figs. 1 and 2. The power drum is provided with grooves, a, and with a friction clutch member, a, with which clutch member is adapted to engage a clutch memher (not shown) on driven drum, B Said driven drum is adapted to be shifted into and out of engagement (by suitable operating appliances) with friction clutch member, a, of power drum, A, and as before described, said driven drum is provided with a brake surface, it, with which is adapted to engage a brake, H. The idler drum employed in the construction of Figs. 3 and 4 is indicated at I, and it is provided with a number of co-axial grooves, 71, the latter corresponding in number with grooves, a, of the power drum, and said drum is positioned so that its grooves, 2', register with the grooves, a, of said power drum. The idler drum, 1, is supported on a shaft, J, the latter being parallel to shaft, D, of the power drum. Said shaft, J, is mounted in a stand, K, the upper part of which extends above the lower edge of brake member, h, for the purpose of affording a support for a shaft, L, of an intermediate roller, M. Said roller is mounted on the shaft for free rotation with respect to the power drum and the idler drum, and said roller engages frictionally with the'periphery of the power drum and the periphery of theidler drum, as shown in Figs. 3 and 4, whereby the intermediate roller precludes movement of the idler drum toward the power drum under the strain of cable, F.

It is apparent :that the power operated s cable passes alternately around the grooved power drum and the grooved idler drum, and that the idler drum cooperates with the cable and the power drum in such manner as to preclude the runs or wraps of the cable from overlapping each other on the power drum.

The invention disclosed in Figs. 5 and 7 of the drawings is similar in all material respects to the apparatus of Figs. 3 and 4:. Instead of employing a single intermediate roller, the apparatus of Figs. 5 and 7 embodies a plurality of rollers, M, which are supported by shafts, L, in the head, K, of the stand, K. Ihe intermediate rollers are positioned at the respective sides of a vertical line drawn through the aXes of shafts, D J, and said intermediate rollers, M, engage frictionally with the peripheries of power drum, A and idler drum, I.

As hereinbefore indicated, the apparatus shown in Figs. 1 and 2, 3 and 4;, or Figs. 5 and 7 may be used in connection with hoisting and conveying mechanism of the prior patent to which reference has been made, but in Fig. 6 of the drawings I have illustrated, diagrammatically, an adaptation of the invention whereby power from a single cable, E may be communicated to a number of drums, A A A The power cable runs around pulleys, f, 7, one of which is operated by an engine or other appropriate means for the purpose of imparting motion to said cable, E The power operated drums, A A A are associated with cable E each of said drums having an idler drum, such as G, I or I, associated therewith in an obvious manner so as to preclude the runs of the cable from coming into frictional contact where they are wound upon the power drum. With each power drum, A A, is associated a single driven drum, O, around which is coiled a cable, 0, whereby power may be communicated from drum, A or A to drum, 0, for the purpose of operating cable, 0. The other drum, A

Copies of this patent may be obtained for is operatively related to a plurality of driven drums, P, P, on each of which is coiled a cable, P, so that the drums, P, P, may be operated separately or collectively by drum, A*, for the purpose of imparting power to cables, P individually. It is apparent that the drums, O, P, P, will all be driven by the power cable, E and the cables of said drums may be utilized for operating a hoisting gear, or various other kinds of apparatus or machinery on a dock, pier, or at any other desired place.

While I have shown and described the idler drum as a unitary structure and as having a plurality of grooves, it is obvious that the same result (2'. c. directing the runs of the cable in spaced order on the power drum) can be attained by the employment of a plurality of direction sheaves mounted on a suitable shaft so as to have cooperative relation to the cable and the drum on which said cable is Wrapped for the purpose of imparting motion thereto.

Having thus fully described the invention, what I claim as new, and desire to secure by Letters Patent is:

1. A rope transmission embodying a power drum, an idler drum, a cable wound upon said power drum and idler drum and an idler or spacing roller intermediate said drums and frictionally engaging the peripheries thereof.

2. In a rope transmission, a power drum, an idler drum, a cable wound upon 'said drums, a support for the shaft of the idler drum and an idler or spacing roller carried by said support and disposed intermediate of and frictionally engaging with the peripheries of said drums.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses:

CHARLES A. MORRIS.

Witnesses JAs. H. GRIFFIN, H. I. BERNHARD.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

